Nikon SB 14 - Manual (Page 28)

TIPS ON AUTOMATIC FLASH SHOOTING-
Subject's Reflectivity
When you shoot a dark subject (one with low reflectivity),
reduce the aperture selected by one-half to one full f/stop.
When the subject is light in tone (has high reflectivity),
reset the aperture so that it is one-half to one full f/stop
wider. Otherwise, your pictures might come out over-
or underexposed.
If you photograph a subject of very high reflectivity, such
as when shooting directly into a mirror or metallic sur­
face, underexposure is certain to occur. In this case,
take pictures on manual.
Sensor Unit SU-2
The sensor reads the light reflected from the subject. If
something, such as the sync cord or your finger, comes
between the sensor and the light reflected from the sub­
ject, the SB-14 will be unable to deliver the correct ex­
posure.
Fill-In Flash Photography
In fill-in flash photography with a very bright back­
ground, overexposure might occur. Make sure that the
scene's brightness does not exceed the exposure value
determined by the combination of shutter speed you set
and aperture selected.
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